Web cutting mechanism



J y 1937- Q c. G. QUIICEZK ET Al, 2,086,476

WEB CUTTING MEGHANI SM Filed June 16, 1935 2 Sheets-Sheet, l

'July 6, 1937. C-GLQUICK ET AL WEB CUTTING MECHANISM 2 Sheets-Sheet 2Filed "June is, less INVENTO R s.-

Patented July 6, 1937 I UNITED STATES PATENT OFFICE WEB CUTTINGMECHANISM Cecil George Quick, William Edward Bennison, and David ArthurHarling Alexander, London, England, assignors to R. Hoe & Co., Inc., NewYork, N. Y., a corporation of New York Application July 16, 1935, SerialNo. 31,634 In Great Britain July 17, 1934 9 Claims. (Cl. 164-60) Thisinvention relates to improvements in web the support it; and thismovement is transmitted cutting mechanism of the kind comprising a pluasan axial movement to the second shaft l4, rality of spaced discs whichco-operate with cutthat end of this shaft remote from the first sleeveting abutments to cut a web into ribbons of a sliding in the secondsleeve 22; the arms l3 carry- 5-' width equal to the separation betweenadjacent ing the shaft-9 partake of this movement so that 5 discs. r thediscs II have a simultaneous transverse According tothe presentinvention the pluadjustment. rality of discs are movable as a unit toeffect a. The abutments with'which the discs co-operate side-layadjustment and each disc is individually are in the form of circularflanges 21 on hubs 10 movable to effect adjustment between adjacent 28,the flanges and hubs being bored to fit on a 0 discs and, moreover, thecutting abutments are third shaft 29 parallel with the shaft 9, thecorrespondingly adjustable. peripheral portions of the discs I I beingarranged The invention is illustrated in the accompanyto overlap theperipheral portions of the flanges ing drawings in which Figure l is aside elevation 21 so as to effect a shear cut of a web passed overpartly in section, and Figure 2 an end elevation. the flanges 21. The,hubs 28 and flanges 21 are 15 In the drawings I indicates a web which isa sliding fit on the third shaft 29 and are propassed around rollers 2,3 to the mechanism acvided with grub screws 30 whereby they may becording to this invention, this mechanism opsecured in a positioncorresponding to the posierating-to slit the web into ribbons which aretion to which the corresponding discs are indivariously directed asdesired, two leads of the vidually adjusted on the first shaft 9. Thisthird 20 ribbons being indicated at 4, 5 these leads passshaft isslidably and rotatably mounted at one ing from a common roller 6 todeflecting rollers end in a bearing 3| carried by the part l6 and 8. vthe other end of this shaft 29 is rotatably mount- The slittingmechanism, which is located beed in a bearing 32 carried by and isprevented D tween the rollers 3, 6, comprises a first shaft 9 frommoving axially with respect to a third sleeve carrying hubs It to whichslitting discs II are 33 slidably mounted in the second part 23; intosecured. The hubs .III are a sliding fit on the i an extension 34 of thesleeve 33 extends a second shaft 9 so that they can be individuallyadjusted screwed member 35 having shoulders 36, 31 beon the shaft andeach hub is provided with a tween which a flange 38 on a bearing cap 39is grub screw I2 whereby the hubs and their discs received to preventaxial movement of the srcewed 30 can be secured to the selected positionon the member 35, this screwed member having an opshaft 9. This shaft iscarried at its ends and at erating hand-wheel 40. Thus, by operating thepoints between the ends in bearings on arms l3 second screwed member thethird sleeve 33 which are secured to a second shaft l4 parallel can beslid and this movement is transmitted to 35 with the first shaft 9. Oneend of the second the third shaft 29 as an'axial movement so that 35shaft I4 is rotatablyvmounted in, but prevented the abutments can beadjusted simultaneously to from axial movement with respect to, a sleevecorrespond with the simultaneous side lay ad- I5 which is mounted toslide in a part 16 of the justment of the discs. The third shaft 29 may,machine frame and is formed with an arm en- I if desired, be supportedbetween its ends by bear- 40 gaged between shoulders IB, IS on a screwings 4| in which the shaft is slidably mounted. 40 threaded member 20,screwed into the part Hi, It will be seen that by the manipulation ofthe this member 20 being provided with an operating handle 24 the extentto which the peripheries of hand-wheel 2i. The other end of the secondthe discs H overlap the peripheries of the flanges shaft i4 is slidablein,but prevented from rotary 21 r g the abutments can be regulated tomovement with respect to, a second sleeve 22 v regulate the depth ofcut. While the adjustment 45 which is rotatably mounted in a second part23 to regulate the depth of cut by manipulation of of the machine frameand this second sleeve 22 the handle 24 is of necessity limited, due tothe is provided with an operating handle 24 by means meshed gears 43 and44,-it is sufficient, when the of which the sleeve and hence the secondshaft material being cut by the discs is paper-thin, and

canbe rocked, a locking bolt 25, passing through may be made withoutseriously affecting the op- 50 anarcuate slot 26 in the handle 24, beingproeration thereof. By provision of this structure, vided for lockingthe arm against movement. it is also possible to adjust the shafts 9 and29 It will now be seen that when the hand-wheel toward and away fromeach other, to compensate 2| on the screw-threaded member 20 is rotated,for smaller and larger diameter discs H and corthis member causes thefirst sleeve I! to slide in responding diflerent diameter gears 44. 55

To provide for the rotation of the discs and abutments, the third shaft29 is provided with a gear wheel 42 driven in any convenient manner.This third shaft 29 is provided with a second gear 5 wheel 43 in meshwith a gear wheel 44 on the first shaft 9, so that rotation of the shaft29 is transmitted to the shaft 9.

Apparatus constructed in accordance with the invention is of particularvalue inits application to printing machines in which the web (or webs)have a long path to follow before beingsevered into product lengths andfolded, and especially when the machine is one of the kind known asintaglio printing presses, in which the web is required to pass arounddrying drums for ef fecting the drying of ink on the web: the long pathand the drying drums (and also turner bars) are factors which tend toproduce sidelay wander of the web but by reason of the mechanismdescribed, when once the slitters have been adjusted to produce thedesired width of ribbon,-

they can be moved bodily to compensate for such wander,

What we claim is:--

2.5 l. Mechanism for cutting a web into ribbons and comprising a firstshaft arranged to extend transversely with respect to a web to be cut, aplurality of cutting discs secured in adjustable spaced relationshiptothe shaft, a second shaft 7 parallel with the first shaft, a pluralityof abut- \ments secured in adjustable spaced relation to the secondshaft, a third shaft parallel with the 1 first and second shafts, meanscarrying one of the last mentioned shafts from the third shaft, meansfor effecting axial movement of the other of the saidlast mentionedshafts, means for effecting axial movement of the third shaft, and meansfor effecting angular movement of the third shaft.

2. Mechanism for cutting a web into ribbons and comprising a first shaftarranged to extend transversely with respect to a web to be cut, aplurality of cutting discs secured in adjustable spaced relationship tothe shaft, a second shaft parallel with the first shaft, a plurality ofabut- 5 ments secured in adjustable spaced relation to the second shaft,a gear on thefirst shaft and a second gear on the second'shaft andmeshing with the gear on the first shaft, a third shaft parallel withthe first and second shafts, means 5 carrying one of the last mentionedshafts fromthe third shaft, means for effecting axial movement of theother of the said last mentioned shafts, a further gear on the saidother shaft and adapted to be driven to transmit drive to the said othershaft, means for effecting axial movement of the third shaft, and meansfor effecting angular movement of the third shaft.

3. Mechanism for cutting a web into ribbons and comprising a first shaftarranged to-extend 6 transversely with respect to a web-to be cut, a

plurality of cutting discs secured in. adjustable spaced relationshiptothe shaft, a second shaft ments secured in adjustablespaced relation tothe 6 second shaft, a third shaft parallel with the first and secondshafts, means carrying one of the last mentioned shafts from the thirdshaft, screw and nut means for'eifecting axial movement of the other ofthe said last mentioned shafts, screw 70 and nut means for effectingaxial movement of the third shaft, and means for effecting angularmovement of the third shaft.

parallel with the first shaft, a plurality of abut 4. In a web cuttingmechanism, a rotatable shaft having a plurality of abutments, eachadjustably mounted thereon for axial adjustment relatively thereto, arockable shaft, means to axially adjust said rockable shaft, a secondrotatable shaft having a plurality of cutting discs thereon, eachadjustably mounted thereon for axial adjustment relatively thereto, andmeans rockable with said rockable shaft to support said second rotatableshaft.

5. In a. web cutting mechanism, a rotatable shaft having a plurality ofabutments thereon, each adjustably mounted thereon for axial adjustmentrelatively thereto, said shaft being mounted, for axial adjustment, arockable shaft, said rockable shaft being mounted for axial adjustment,a second rotatable shaft having a plurality of cutting discs thereon,each adjustably mounted thereon for axial adjustment relatively thereto,and means secured to said rockable shaft and supporting said secondrotatable shaft to connect the same, whereby said second rotatable shaftwill move axially with, and be rocked by, said rockable shaft, and meansto rock said rockable shaft. j I

6. In a web cutting mechanism, a first rotatable shaft having aplurality of, spaced apart abutments thereon, a rockable shaft havingshaft supporting arms thereon, a second rotatable shaft supported bysaid arms'and having web cutting discs thereon spaced apart to cooperatewith said abutments on said first shaft, means to axially adjust therockable shaft, means to rock the rockable shaft, and means to lock therockable shaft -in anyof its rocked positions.

'1'. In a web cutting mechanism, a first rotatable shaft having axiallyadjustable abutments thereon, a second rotatable shaft having abutmentcooperating, axially adjustable cutting discs thereon, an axiallyadjustable member having means to rotatably support one of saidrotatable shafts, means to axially adjust the other of said rotatable,shafts, and means to drive said rotatable shafts.

8. In a web cutting mechanism, a first rotatable shaft having axiallyadjustable abutments thereon, a second rotatable shaft having abutmentcooperating, axially adjustable cutting discs thereon, an axiallyadjustable member having means to rotatably support one of saidrotatable shafts, means to rock said axially adjustable shaft supportingmember to move the abutments and discs relatively to each other, meansto lock said rockable member in any of its rocked positions, and meansto drive said rotatable shafts.

9. In a web cutting mechanism, a first rotatable shaft having axiallyadjustable abutments thereon, a second rotatable shaft having abutmentcooperating, axially adjustable cutting discs thereon, an axiallyadjustable member having means to rotatably support one of saidrotatable shafts, to simultaneously axially adjust all of the abutmentsand all of thediscs relatively to each other, means to lock said axiallyadjustable shaft supporting member in any ofits axially adjustedpositions, and means to drive said rotatable shafts.

CECIL GEORGE QUICK. I

WILLIAM EDWARD BENNISON; DAVID IARTHUR manmo ALEXANDER.

